I think I enjoyed this slightly more than I did last time I read it - but maybe that's because this time I knew what I was getting into, and set my expectations accordingly.

It does of course feel like a tone shift from the TV show, as we are very quickly talking indepth about UFOs and secret government conspiracies. A slight detour in the middle to just talk about the history of Twin Peaks characters, and then back to UFOs. 

But for what it is, I would say the information is actually quite intriguing and interesting, and it's well put together for the most part (maybe aside from the jarring tone shift).